Hi
I have just built my own SU-31 foamie, like the Airwavi design one.
I ordered a Hacker B20 some weeks ago and it has finaly arrived. On the pic the Su-31 is powered with a geard graupner speed 400.It doesnīt give any hovering possibilitys but it flies quite good on 10 HeCell 1100 mAh cells.